See what the internet already knows about you.

AssistYu's cybersecurity tools bring together powerful, client-side security assessment tools that let you assess your digital exposure without ever sending a single byte to a server. Each cybersecurity diagnostic tool runs entirely in your browser, using local heuristics and live environment checks to deliver evidence-based verdicts on your network identity, breach exposure, and endpoint vulnerability. These security diagnostic tools are designed for developers, IT administrators, and privacy-conscious individuals who want to quickly identify and remediate browser-based vulnerabilities, leaked credentials, or network exposure without compromising their privacy.

The Network & Identity Scan reveals your public IP, ISP, WebRTC leaks, and device fingerprint—showing exactly what the internet sees when you connect. This network security tool is essential for understanding your digital footprint and identifying potential privacy risks. It detects WebRTC leaks that can expose your real IP address even when using a VPN, analyzes your browser's fingerprint to show how trackers identify you, and provides a comprehensive overview of your network exposure. For anyone concerned about online privacy, this security assessment tool is an indispensable first step.

The Data Breach Intelligence tool checks your email address against known public breach databases, alerting you to credentials that have been compromised in past security incidents. This cybersecurity diagnostic tool scans over 10 billion records from thousands of data breaches, including high-profile incidents like LinkedIn, Yahoo, Adobe, and Dropbox. By identifying which of your credentials have been exposed, this security tool helps you take immediate action—changing passwords, enabling two-factor authentication, and securing accounts before they can be exploited by cybercriminals. It's a critical component of any comprehensive security assessment strategy.

The Endpoint & Browser Vulnerability Audit probes your browser's engine version, canvas fingerprinting, WebGL GPU unmasking, ad-blocker efficacy, and hardware telemetry, then cross-references against known CVEs to produce a comprehensive risk score. This advanced vulnerability scanner goes beyond basic browser checks by analyzing how your device is exposed through graphics rendering, font enumeration, and audio fingerprinting techniques used by trackers and malicious actors. The audit engine identifies outdated browser versions, misconfigured security settings, and privacy leaks that could be exploited by attackers. By correlating your browser's characteristics with the Common Vulnerabilities and Exposures (CVE) database, it provides a detailed, actionable security assessment of your endpoint's security posture.

Together, these cybersecurity tools give you a complete, 360-degree view of your digital exposure. Whether you're a developer testing your application's security, an IT administrator auditing your organization's devices, or a privacy-conscious individual wanting to understand your online footprint, these security diagnostic tools provide the answers you need—instantly and privately. No signup required, no data collected, and no persistent tracking. Just real, actionable security intelligence delivered directly to your browser.

All diagnostics execute in a sandboxed local environment—no data is sent to AssistYu servers, no cookies are written, and no persistent identifiers are stored. The audit engine uses standard Web APIs (Canvas, WebGL, Navigator, Storage) to extract non-identifying parameters, then applies a heuristic risk model to classify your exposure level. This privacy-first approach ensures that your cybersecurity assessment remains completely confidential. Unlike cloud-based security scanners that collect and store your data, AssistYu's cybersecurity diagnostic tools operate entirely on your device, giving you the benefits of advanced security scanning without the privacy trade-offs.

For developers and IT professionals, these security assessment tools provide a quick, reliable way to test browser security, identify vulnerabilities in the development environment, and ensure that web applications are deployed with proper security configurations. The tools can be used in CI/CD pipelines, during security audits, or as part of regular security hygiene practices. For everyday users, they offer peace of mind by revealing what information is exposed and providing clear guidance on how to close security gaps.

AssistYu's cybersecurity tools represent the modern approach to security assessment—fast, private, and evidence-based. Whether you're running a network security scan, checking for data breach exposure, or auditing your browser security, these security diagnostic tools deliver accurate, actionable results without compromising your privacy. Try them today and discover exactly what the internet knows about you—and how to take control of your digital security.